Answer:
At 5 hours both skating rinks will cost the same.
Step-by-step explanation:
5 + 2(5) = 15
10 + 1(5) = 15
(x,y) = (5,15)
Answer:
Yes
Step-by-step explanation:
the X doesn't repeat
-9/4 divided by (-2/3). (The second one)
For this case we have that by definition, the Pythagorean theorem states that:
![c = \sqrt {a ^ 2 + b ^ 2}](https://tex.z-dn.net/?f=c%20%3D%20%5Csqrt%20%7Ba%20%5E%202%20%2B%20b%20%5E%202%7D)
Where:
a, b: Are the legs
c: It is the hypotenuse
According to the figure we have to:
![a = 20\\b = 21](https://tex.z-dn.net/?f=a%20%3D%2020%5C%5Cb%20%3D%2021)
Substituting in the formula we have:
![c = \sqrt {(20) ^ 2 + (21) ^ 2}\\c = \sqrt {400 + 441}\\c = \sqrt {841}\\c = 29](https://tex.z-dn.net/?f=c%20%3D%20%5Csqrt%20%7B%2820%29%20%5E%202%20%2B%20%2821%29%20%5E%202%7D%5C%5Cc%20%3D%20%5Csqrt%20%7B400%20%2B%20441%7D%5C%5Cc%20%3D%20%5Csqrt%20%7B841%7D%5C%5Cc%20%3D%2029)
Answer:
Option D